Edward mcevoy



E. McEVOY.

GUT-OUT BLOCK.

(No Mode1.)

Patented June 14, 1887.

Suva um witmobea N. PETERS. Fl' mlo-Lithngnphur. Wauhingiofl. n: c,

overheated or are so injured as to threaten,

provement when open.

' UNITED STATES PATENT OFFICE.

EDXVARD MOEVOY, OF NEW YORK, N. Y.

CUT-OUT BLOCK.

SPECIFICATION forming part of Letters Patent No. 364,721, dated June 14,1887.

Application filed August 27, 1886. Serial No. 211,910. (No model.)

To all whom it may concern.-

Be it known that I, EDWARD MOEVOY, a citizen of the United States, and aresident of the city of New York, in the county of- New York and Stateof New York, have invented a new and useful Improvement in Out-OutBlocks; and I do hereby declare that the-fol-' lowing specification,taken in connection with the drawings annexed to and forming part of thesame, furnishes a full and clear description of the invention,sufficient to enable those skilled in the art to which it pertains tomake and operate the same.

My invention relates to illumination by doc tricity. Its objects are toprovide in one and the same device a holder or carrier for the mainsupplywires, a'support for the tap-wires, a means of tapping the mainwires and establishing connection between them and the tapwires, and ameans of automatically breaking said connection when the main wiresbecome the destruction of the tap-wires. These objects are secured bythe device illustrated in V the accompanying drawings, in whicl1--Figure 1 is a perspective View of my im- Fig.. 2 is a similar view ofthe detachable cover of the same.

In the said drawings, A is a wooden tapblock and wiresupport. B is awooden detachable cover for the same.

.O is a broad elongated channel in the center of the block A.

D and D are narrow elongated channels on either side of the channel 0.

E is a narrow fiat plate made of good conducting metal, secured to theblock A and extending from the channel D to the channel 0, at a rightangle to the same.

F and G are narrow flat plates made of good conducting metal, secured tothe block A, one near each end of the channel 0 and parallel with saidchannel.

H is a narrow flat plate made of good conducting metal, sccured to theblock A and eX- tending from the channel D to the channel (l,

' at a right angle to the same.

I and J are narrow fiat arms, made of a fusible metal possessing thequality of good conand sides of the channel 0, which extends throughthecenter of the block A.

L is a perforation which extends through the center of the cover B.

a, and Z) are set-screws in the plate E. c and dare set-screws in theplate F. ,e and fare set-screws in the plate G. g and h are setscrews inthe plate H.

i and z" are small perforations on either side ofthe perforation K,which also extcndthrough the block A.

j, j, j and j are small apertures in the block A and cover 13, toreceive screws for attaching and holding the cover B to the block A;

Z Z' are orifices in the block A, to receive screws to hold the block tothe ceiling or other desired support. r

m m are the mainsupply-wires.

a n are the tap-wires.

o 0 are narrow channels in the upper surface of the cut-out block A'.

Similar letters denote corresponding parts in the several views.

My invention, constructed as shown and described, and having its severalparts, exclusive of the supply and tap wires, arranged and connected asshown and described, is applied to use in the following manner:

The cover B is removed and the tap-wires n n are together passed upthrough the perforation K, and their respective ends are passed downthrough the perforations z and i and connected to the plates F and G bythe setscrews (1 and c, the insulating material being removed from saidwires sufficiently to allow said wires to come in contact with saidplates when the screws (1 and e are set in place. The block Ais thensecured to the ceiling or other support, and the setscrews a and h areremoved from the plates E and H, and the main supply-wires mmaredirected into and through the channels D and D over and upon the platesE and H. The insulating material which incloses the wires m and m isremoved sufficiently to permit of said plates and wires being brought incontact by the pressure of the set-screws a and h, and said screws areset in place in their respective plates. The tap wires are next passedthrough the perforation L in the cover 13, said cover is secured to theblock A, and said tap-wires are then connected to the lamp in the usualmanner. The flow of the electric current loci ng established, its courseis from the main wire m, through the plate 15, arm I, plate F, andtap-wire n, to the lamp, and from the main wire m, through the plate II,arm J, plate G, andtap-wire n, to the lamp.

If at any time the intensity of the electric current is so excessive asto overheat the wires, or if the same become otherwise injured so as toendanger and threaten the destruction of the tap-wires,the excessi veheat fuses and melts the arms I and J, breaks the connection between thewires on m and n a, and the danger of the destruction of the lamptap-wires is averted. The block A may then be readily opened and thedamaged parts be repaired or renewed.

By my invention I secure an effective tapping of the main supply-wiresand relieve the latter of the weight of t.l1etap-wires, the arrangementof said 1ast-na1ned wires being such that they are held and supported bythe tapblock itself. The employment of the fusible arms which connectthe plates E and F and G and II insures an automatic cut-off of theelectric fluid from the tap-wires the instant the main wires becomeoverheated.

Having thus described myinvcntion, its construction and manner ofoperation, I do not claim, broadly, a block for connecting tapwires byset-screws to the main wires; nor do I claim the invention of theeasily-melted connecting-arms I and J; but

\Vhat I do claim, and desire to secure by Letters Patent, 1's- 1. As anew article of manufacture, a tapblock or cutout block for the wires ofelectric lamps, combined with the main supply-wires m and m and thetap-wires n and a of an electric circuit having the plates 1 F, G, andII, arms I and J, sct-screws a, b, c, d, c, f, g, and h, and providedwith the triple channels 0, I), and D and the crosschannels K, i, and i,substantially as and for the purposesshown, and as described.

2. The combination of the main supplyand i, as shown and described,whereby the combined result of a fusible and adjustable tap-connection,together with an improved support for pendent lampwires, is effected.EDWARD MeEVOY. Witnesses:

F. W. IIANAFORD, ISAAC JAOOHSON.

